+0  
 
0
189
1
avatar

... -5 ^ 2 = 25, not -25 !!!!

This calculator gets it wrong even if I do 5 * -1 = -5  ^ 2

Guest Mar 25, 2015

Best Answer 

 #1
avatar+81049 
+5

Sorry, but

-5^2  = -1(5)^2 = -1*25 = -25

The exponent only applies to the 5, not to the "understood" -1 out front.

Note however.......

(-5)^2  = (-1*5)^2  = (-1)^2*(5)^2 = 1 * 25  = 25

The exponent applies to both the 5 and the "understood" -1 in front.

 

  

CPhill  Mar 25, 2015
Sort: 

1+0 Answers

 #1
avatar+81049 
+5
Best Answer

Sorry, but

-5^2  = -1(5)^2 = -1*25 = -25

The exponent only applies to the 5, not to the "understood" -1 out front.

Note however.......

(-5)^2  = (-1*5)^2  = (-1)^2*(5)^2 = 1 * 25  = 25

The exponent applies to both the 5 and the "understood" -1 in front.

 

  

CPhill  Mar 25, 2015

15 Online Users

avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details